Duplex 2205 Socket Head Cap ScrewASTM A276 · ASME B18.3 · Manufacturer, stockist & exporter, India
UNS S32205 / S31803 · W.Nr 1.4462
A Duplex 2205 socket head cap screw is a screw with a cylindrical head and hexagon socket, made from Duplex 2205 to ASTM A276 / A479. Allen-type cap screws are used where the head must sit flush or space is tight.
- ASTM A276
- ASME B18.3
- EN 10204 3.1 / 3.2
- Export packing
Reviewed by the Kanak Steel & Engineering Co. technical team · Updated October 2026
What is a Duplex 2205 Socket Head Cap Screw?
- What it is
- A screw with a cylindrical head and hexagon socket
- Material
- ASTM A276 / A479
- Dimensions
- ASME B18.3 · DIN 912 / ISO 4762
- Grade
- Duplex 2205 · UNS S32205
- Best at
- Strength with chloride resistance at a stainless-steel budget
Duplex 2205 Socket Head Cap Screw Specification
| Product | Duplex 2205 Socket Head Cap Screw |
|---|---|
| Material standard | ASTM A276 / A479 |
| Dimensional standard | ASME B18.3 · DIN 912 / ISO 4762 |
| Sizes | M10 – M64 · ½" – 4" (others on request) |
| Threads | UNC · UN-8 · metric coarse |
| Testing | PMI · dimensional · NDT and IGC on request |
| Documents | EN 10204 3.1 · 3.2 with third-party inspection |
When to Choose a Socket Head Cap Screw
Allen-type cap screws are used where the head must sit flush or space is tight.
- Hex socket drive
- ASME B18.3 · DIN 912
- Metric and inch
Duplex 2205 Socket Head Cap Screw Chemical Composition
| Element | Weight % |
|---|---|
| Chromium | 22.0 – 23.0 |
| Nickel | 4.5 – 6.5 |
| Molybdenum | 3.0 – 3.5 |
| Nitrogen | 0.14 – 0.20 |
| Carbon | 0.030 max |
| Manganese | 2.00 max |
| Silicon | 1.00 max |
| Phosphorus | 0.030 max |
Duplex 2205 Socket Head Cap Screw Mechanical Properties
| Solution-annealed plate & sheet | Value |
|---|---|
| Tensile strength | 655 MPa · 95 ksi |
| Yield strength 0.2% | 450 MPa · 65 ksi |
| Elongation | 25% |
| Hardness | 293 HB max |
Full chemistry, properties and equivalents are on the Duplex 2205 grade page.
Standards on this page
Other Duplex 2205 fasteners
Duplex 2205 Socket Head Cap Screws for export
FOB / CIF · Nhava Sheva (JNPT), MumbaiDuplex 2205 Socket Head Cap Screw — questions buyers ask
DIN 912 and ISO 4762 — are they the same?
Yes, ISO 4762 replaced DIN 912 with the same main dimensions.
Which standard covers Duplex 2205 socket head cap screws?
The material is ASTM A276 / A479; dimensions follow ASME B18.3 · DIN 912 / ISO 4762. Always state both on your purchase order, with the edition if your project specifies one.
What decides the price of a Duplex 2205 socket head cap screw?
The alloy price, the size and dimensions, quantity, and the testing and documents required. Send your list and we quote the same working day.
Can you supply Duplex 2205 socket head cap screws to NACE MR0175?
Yes. Duplex 2205 is listed in NACE MR0175 / ISO 15156-3 within its limits; state NACE compliance on the order and it is confirmed on the certificate.
What documents do you supply?
EN 10204 3.1 mill certificates as standard, 3.2 with third-party inspection on request, plus dimensional and PMI reports.
Sources: the ASTM / ASME specifications named on this page and producer datasheets · Last updated October 2026